Improvement in cabinet-makersj scrapers



UNITED STATES PATENT OFFICE.

FRANK A. WILLIAMS, JOHN H. WILLIAMS, AND DANIEL G. WILLIAMS, OF

, CINCINNATI, OHIO.

IMPROVEMENT IN CABINET-MAKERS SCRAPERS.

Specification forming part of Letters Patent No. 56,651, dated July 24, 1866.

To all whom it may concern Be it known that we, FRANK A. WILLIAMS, J OHN H. WILLIAMS, and DANIEL G. WIL- LIAMs, all of Cincinnati, Hamilton county, Ohio, have invented a new and useful Cabinet- Makers Scraper; and We do hereby declare the following to be a full, clear, and exact description thereof, reference being bad to the accompanying drawings, making part of this specification.

The scraper in customary use by cabinetniakers, coach-makers, and other finishers of wood-work consists, as is well known, of a simple blade of steel having a turned or upset andsharpened edge. This blade, being grasped by the workman between the fingers and thumbs of both hands is operated by being thrust forcibly over the work. This operation, besides blistering the hands of the operator, so quickly heats up the tool as to soon oblige him to lay it down. These inconveniences we wholly avoid by mounting the scraper proper in a suitably-formed handle of wood or other noi'i-conducting material. We also, in addition to said provision, apply mechanical devices whereby the tool can be made to scrape with greater or less fineness independently of the degree of force or pressure exerted.

Figure 1 is a perspective view of a scraper embodying our invention. Fig. 2 is a transverse section taken at mid-length of the instrument. Fig. 3 shows the parts of the scraper detached. Fig. 4 represents forms of bits adapted for operation on hollow and on round work respectively.

A represents the bit or scraper proper. B is a stock or handle of wood, suitably excavated to receive the bit and a mouth-piece, C.

The bit A, being sprung into the notches b b, is adjusted toward the mouth-piece, so as to shave with any desired degree of fineness, by means of a set-screw, D.

Thumb screws E E serve to secure the mouth-piece C, and, through it, the bit A.

On slackening of the mouth-piece C by retraction of the screws E E the bit is so far released as to be readily shifted, so as to cut rank or fine. \Vhen adjusted to cut fine, it should also, by means of the screw D, be set proportionally near to the mouth-piece. On the retraction of the screw D, the spring of the bit itself draws it automatically away from the mouth-piece. The mouth-piece has a throat or excavation, 0, through which the shavings escape.

During operation the heads of the thumbscrews E E serve as a brace or abutment for the thumbs of the operator.

We have selected for illustration a scraper adapted for flat work; but the device is equally applicable for curved work, the bit and handle being modified in each case as judgment or ancy may indicate.

YVe claim herein as new and of our invention A scraper consisting of the blade A, stock B b, mouth-piece C, set-screw D, and clampiu screws 15 E, all constructed and arranged substantially as and for the purpose herein specified.

In testimony of which invention we hereunto set our hands.

FRANK A. WVILLIAMS. JOHN H. WILLIAMS. DNL. G. WILLIAMS.

WVitnesses GEO. H. KNIGHT, JAMES H. LAYMAN. 

